shomari stone joins us with new information tonight. shomari? >> reporter: this was the break that charles county sheriff's investigators have waited two and a half weeks for. detectives say the 17-year-old joshua mebane killed teresa bass. the teen is also suspected in the fatal shooting of a d.c. cab driver last week. now, d.c. police got a tip in the cab driver murder case from someone claiming joshua mebane lamingly shot and killed her while she was walking her dog on a trail with her husband in the hampshire neighborhood october 26th. her husband was also shot multiple time and survived with serious injuries. mebane lives in the same neighborhood with his parents. crime scene investigators searched the home this weekend and found a gun that was alongly used to kill teresa bass. >> it was ballistically checked for prints in prince george's county and ballistically it was a positive match with the shell casings and the ballistic rounds located at the crime scene. >> reporter: the teen was one of two 17-year-olds arrested last week for alleged